PHYS 250 Final Exam PSB
questions & answers
Distance is defined as - answer the separation between two points
Position is defined as - answer an objects location according to
some frame of reference
Frame of reference is defined as - answer a system of points the
observer considers stationary
Displacement is defined as - answer an objects change in position
On a position vs time graph, the y-intercept gives what? - answer
starting position
On a position vs time graph, the slope shows? - answer velocity
What is a vector quantity? - answer a physical quantity that has
both magnitude and direction (ex. displacement, velocity,
acceleration, force, and weight)
If an object is traveling at a constant velocity, during each one
second interval, the distance traveled during one second will be? -
answer constant
, If an object is traveling at a constant acceleration, during each
one second interval, the velocity of the object will be? - answer
changing by the same amount
A circular running track has a radius of 60 m. You run exactly half
way around, what is your displacement? - answer 120 m, (d=2r)
A circular running track has a radius of 60 m. what was the
distance you ran? - answer 188 m, (C=2πr which then becomes
d=πr)
A circular running track has a radius of 60 m. If you walked around
that track in 2 minutes, what is the average velocity? - answer 0
m/s, (Δx/t)
Can an accelerating object have a constant speed? - answer yes,
accelerating objects can have a constant speed
An animal starts a rockslide, the rocks start falling at a speed of
1.0 m/s and crash down the slope for 100 m. If the rocks reach
the bottom in 5 seconds, their acceleration will be? - answer 7.6
m/s², (d=v₀t + 1/2at²)
A dog is moving at 2.0 m/s then accelerates at a rate of 1.5 m/s².
How fast will the dog be going when it is 10.5 m away from the
point she started accelerating? - answer 6.0 m/s, (Vf²=Vi²+2aΔx)
questions & answers
Distance is defined as - answer the separation between two points
Position is defined as - answer an objects location according to
some frame of reference
Frame of reference is defined as - answer a system of points the
observer considers stationary
Displacement is defined as - answer an objects change in position
On a position vs time graph, the y-intercept gives what? - answer
starting position
On a position vs time graph, the slope shows? - answer velocity
What is a vector quantity? - answer a physical quantity that has
both magnitude and direction (ex. displacement, velocity,
acceleration, force, and weight)
If an object is traveling at a constant velocity, during each one
second interval, the distance traveled during one second will be? -
answer constant
, If an object is traveling at a constant acceleration, during each
one second interval, the velocity of the object will be? - answer
changing by the same amount
A circular running track has a radius of 60 m. You run exactly half
way around, what is your displacement? - answer 120 m, (d=2r)
A circular running track has a radius of 60 m. what was the
distance you ran? - answer 188 m, (C=2πr which then becomes
d=πr)
A circular running track has a radius of 60 m. If you walked around
that track in 2 minutes, what is the average velocity? - answer 0
m/s, (Δx/t)
Can an accelerating object have a constant speed? - answer yes,
accelerating objects can have a constant speed
An animal starts a rockslide, the rocks start falling at a speed of
1.0 m/s and crash down the slope for 100 m. If the rocks reach
the bottom in 5 seconds, their acceleration will be? - answer 7.6
m/s², (d=v₀t + 1/2at²)
A dog is moving at 2.0 m/s then accelerates at a rate of 1.5 m/s².
How fast will the dog be going when it is 10.5 m away from the
point she started accelerating? - answer 6.0 m/s, (Vf²=Vi²+2aΔx)
